P.D. Ouspensky
Author: P.D. Ouspensky
Publisher: Vintage (1971)

You cannot stop impressions altogether, but, as I said, you can keep off undesirable impressions and attract to yourself another kind of impressions, for we must already understand that certain impressions we must not admit. There are many wrong impressions which may spoil one's whole life if one admits them for a sufficiently long time, or if one has the habit of looking for certain bad impressions. For instance, people stand in the street looking at a street accident, and then talk about it until the next accident. These people collect wrong impressions. People who gather all kinds of scandal, people who see something wrong in everything—they also collect wrong impressions. You have to think not so much about choosing the right impressions as about isolating yourself from wrong impressions. Only by doing this will you have a certain control. If you try to choose right impressions, you will only deceive yourself. So, although you cannot bring desirable impressions to yourself, you can, even from the very beginning, learn to control them by isolating yourself from certain kinds of wrong impressions. Again you must remember that, in order to control impressions, you must already awake to a certain extent. If you are asleep, you cannot control anything. In order to control quite simple, obvious things you must awake and practise, because if you are accustomed to impressions of a certain kind which are wrong for you, it will take some time. One 'I' will know that it is necessary to isolate yourself, but maybe ten other 'I's will like these impressions